Shoe-sole-attaching machine



May 21,- 1929; G. LAGANAS snos ,SOLE =ATTAQHING- momma Filed Jan. :51. 19 28 IN V EN TOR.

A TTORNE Y.

Patented May 21, 1929.

'GEORGE LAGANAS, 0F LOWELL, MASSACHUSETTS.

I SHOE-SOLE-ATTACHING MACHINE.

Application filed January a1, 1928. Serial a. 250,785.

This invention relates to a shoe sole attaching machine, and has for its object to provide, in a manner as hereinafter set forth, a machine of such class for expeditiously uniting, by pneumatic pressure, a sole to the upper of a shoe and simultaneously giving the required bend to the sole during the uniting operation.

Further objects of the invention are to provide, in a manner as hereinafter set forth, a shoe sole attaching machine which is simple in its construction and arrangement, strong, durable, compact, thoroughlyefliciont in its use, conveniently operated, providing for the expeditious positioning of the machine to and from active position with respect to the sole and upper,readily assembled, and comparatively inexpensive to manufacture.

With the foregoing and other objects in view the invention consists of the novel construction, combination and arrangement of parts as hereinafter more specifically described, and illustrated in the accompanying drawings, wherein is shown an embodiment of the invention, but it is to be understood that changes, variations and modifications can be resorted to which fall within the scope of the claim hereunto appended.

In the drawings wherein like reference characters denote corresponding parts throughout the several views:

Figure 1 is an elevation, partly in longitudinal section, of a shoe sole attaching machine in accordance with this invention, and further illustrating the position of the machine relative to the sole and shoe upper during the sole attaching and bending steps.

Figure 2 is a top plan view of the machine showing the position with respect thereto of a last carrying an upper to which the sole is to be attached.

Referring to the drawings in detail 1 denotes an oval shaped base provided at one end wih an extension 2 projecting a substantial distance above the upper face of the base; contour to conform to the bend required for the sole 3 when the latter is attached to an upper 4:, carried by a last 5. The upper face of the base 1. is indicated at 6. Secured to the upper face 6 of the base 1 is a purality of flexible members '7, preferably leather and the contour of each thereof corresponds to the contour of the upper face of the base 1. The members 7 extend from the projection 2 The upper face of the base is of a to the other end of the base 1. Mounted on the upper member 7, is an inflatable, flexible pressure applying member 8 of a length slightly greater than the length of a member 7. Communicating with one end of the pres sure applying member 8 for the purpose of supplying compressed air thereto is a supply tube 9.

Secured to the projection 2 is a vertically disposed peripherally threaded rod 10. The rod 10 is fixed and has adjustably mounted thereon a revoluble hinge member 11. The rod 10 provides a vertical pivot for the member 11 and the latter is formed with an opening for the passage of the rod 10. The member 11 is retained in adjusted position, with respect to the rod 10, by a pair of retaining nuts 12, 13 the former being arranged above the member 11 and the latter abutting against the bottom thereof. The member 11 is extended inwardly from the rod 10 and bifurcated as at 14, to provide a pair of arms 15. Extending between the arms 15 is one end of an abutment element 16. That end of the element 16 which extends between the arms 15, is pivotally connected to said arms 15, by a pivot 17. The hinge 11 and the pivot 17 permit of the abutment element to be swung on a vertical and a horizontal axis. The abutment element 16 is arranged in superposed relation with respect to the pressure applying member 8, and is disposed substantially -in alignment with the longitudinal-median of the member 8. The abutment member 16 is formed at a point between its vertical median and one end with a series of spaced, aligning openings 18. The openings 1.8 are aligned longitudinally of the element 16 and the latter between its vertical median and its other end is formed witln a,-

series of opposed openings 19 disposed longitudinally of the element 16. The series of openings 18 are arranged below the series 0t openings 19. a The openings 18 selectively receive apivot 20 for a depending 16 with the base 1 by a clamping member 25 which is in the form of an inverted yoke and has its sides pivotally connected to the sides of the base'as at 27.

The clamping member 25 has the portions of its sides above the pressure applying memportion of the upper on the last 5 and the abutment member 23 seats against the last 5 at the to of the heel or rear portion thereof. The est 5 as shown is formed of two sections pivotally connected together as at 29 and the pivoted sections of the last, coact with the shape of the upper face of the base 6, for the purpose of bending the sole in the desired manner.

The sole 3 is adapted to be secured to the 7 upper 4 by suitable cementitious material interposed between the sole and the upper and on a supply of fluid pressure to the member 8, the latter will expand and force the last 5 against the abutment members 21, 23. Under such conditions the sole 3 will be secured to the bottom of the upperand the sole also will be bent in the desired manner. The expansion action of the member 8 is had on a supply of pressure thereto from the tube or pipe 9 and the clamp 25, on the expansion action of the member 8, will prevent the shifting of the element 16 on its vertical or horizontal pivot. The adjustability of the hinge member 11 permits of the element 16 to be positioned at varyin heights with respect to th base 1 under suc conditions that different heights of lasts can be employed when desired. Further the element 16 can be shifted on its horizontal pivot to release the last 5, after the clamping member 25 has, been shifted ofi of the shoulder 24; and also said element 16 can be shifted on its vertical pivot clear of the last when occasion requires.

It is thought the many advantages of a shoe sole attaching machine, in accordance with this invention can be readily understood, and although the preferred embodiment of theinvention is as illustrated and described, yetit is to be understood that changes in the details of construction can be had which fall within the scope of the invention as claimed.

What I claim is:

A machine for the urpose set forth comprising a base, an in atable pressure applying member mounted thereon and adapted to have positioned thereon a sole for securement to an upper carried by a last, a vertical, threaded rod havin its lower end connected to one end of the base, a vertically adjustable, revoluble hinge member mounted on the rod, an abutment element having one end positioned in said member, a horizontal pivot connecting the element and member together, said-element bein provided at its other end with stepped s oulders and intermediate its ends with spaced abutment members for positioning over and engageable with the last and upper, an upstanding clamp pivoted to the other end of the base and selectively seating on a shoulder for detachably clamping said abutment members in position against the upper and last on the expansion of the pressure applying member whereby the sole will be secured to the upper.

and means threadedly engaging with said rod for maintaining said hinge member in adjusted position.

In testimony whereof, I afiix my signature at hereto.

GEORGE LAGANAS. 

